contemporaneity vs concurrence

contemporaneity and concurrence both are nouns.

Word	Noun	Adjective	Verb	Adverb
contemporaneity	Yes	No	No	No
concurrence	Yes	No	No	No

As nouns, concurrence is a hypernym of contemporaneity; that is, concurrence is a word with a broader meaning than contemporaneity:

Other hypernyms of contemporaneity include co-occurrence, coincidence, conjunction.

contemporaneity (noun)	concurrence (noun)
the quality of being current or of the present	acting together, as agents or circumstances or events
the quality of belonging to the same period of time	the temporal property of two things happening at the same time
	agreement of results or opinions
	a state of cooperation